Where it is usedPower & ElectricalInsulator compound to above 33 kV, insulation sheet and corona treatment sleeves.
Insulator Compound
Raw silicone for making high-voltage power line insulators.
A ready-to-use rubber compound for moulding or injection moulding, in two grades: HV for 11–33 kV, EHV for anything above 33 kV. Grey or light grey as standard, or any requested colour.
- Grades
- HV · EHV 11–33 kV and above
- Dielectric strength
- 26.32 kV/mm, EHV
- Hardness
- 60–67 Shore A
- Datasheet and price in one reply
- Grade confirmed before you order
- Delivery date confirmed with the quote
- Domestic and international supply
Specifications
Every figure from our catalogue. Unsure what a term means? Open the explainer under the table.
| Property | HV 02 (11–33 kV) | EHV (above 33 kV) |
|---|---|---|
| Hardness | 60–64 Shore A | 64–67 Shore A |
| Specific gravity | 1.57–1.60 | 1.55–1.57 |
| Tensile strength | 2.5–3 N/mm² | 4.6–5 N/mm² |
| Elongation | 180–200 % | 220–250 % |
| Tear strength | 12–12.7 kN/m | 16–17 kN/m |
| Volume resistivity | 4.236 × 10¹⁴ ohm-cm | 1.75 × 10¹⁵ ohm-cm |
| Dielectric strength | 20.55 kV/mm | 26.32 kV/mm |
| Resistance to tracking and erosion | No tracks after 3.5 kV, 6 h | No tracks after 4.5 kV, 8 h |
New to these terms?What the numbers mean
- Shore A
- How hard the rubber is. 25 is soft like a rubber band, 40 like a pencil eraser, 70 like a car tyre, 80 firm like a shoe heel.
- Tensile
- How hard you can pull before it breaks. Higher is stronger.
- Elongation
- How far it stretches before breaking, as a %. 400 % means four times its own length.
- Tear
- How well it stops a small cut from spreading.
- Specific gravity
- How heavy it is compared with water. 1.2 means 20 % heavier than the same volume of water.
- Dielectric
- How much voltage it can block before electricity punches through.
Try it
Two quick, hands-on ways to understand this product before you ask.
How firm is 60–67 Shore A?
Drag the press down onto a block, then let go. It gives way and springs back as the real rubber would: about as firm as a car tyre.
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Silicone SleevesHeat on request
Ordering is three steps
No account, no checkout. You tell us what you need; we reply with the grade, the datasheet and the price.
- 01
Add to enquiry
Add every product you are interested in. Not sure? Add your best guess.
- 02
Send it
Open your enquiry, add the size, quantity and where it will be used, and send it by WhatsApp or email.
- 03
Get a clear quote
We confirm the right grade and reply with the datasheet, price and delivery date.